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Topic: Rate Constant  (Read 2523 times)

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Offline Sazzerah

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Rate Constant
« on: June 19, 2013, 01:26:14 PM »
I cannot figure out the question I am given, I have done the ones before it but they didn't have 10-6;
"The reaction between NO and Cl2 has been studied at 50°C, recording the initial rate of formation of NOCl for the initial cconcentrations of reactants as shown in the table.



Write the rate equation for the above reaction and work out the value for the rate constant."

I would appreciate it if I could get some help with this as I need to complete this by this Friday.

Offline Borek

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Re: Rate Constant
« Reply #1 on: June 19, 2013, 04:12:06 PM »
Could you solve it if rates were 1.43, 2.86 and 11.4?
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Offline Sazzerah

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Re: Rate Constant
« Reply #2 on: June 19, 2013, 04:38:54 PM »
Could you solve it if rates were 1.43, 2.86 and 11.4?

I get this, but if I am wrong please correct me and could you tell me the units for the answer please;

1.43*10^-6 / (0.25^2*0.25^1) = 0.00009152 (I think it is first order)
2.86*10^-6 / (0.25^2*0.50^1) = 0.00009152 (I think this is first order)
11.4*10^-6 / (0.50^2*0.50^1) = 0.00009120 (I think this one is second order)

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